I scored 91% in 10th, 82% in 12th and I have passed out b.tech graduation with 59% (in 2019). Right now I don't have any work experience and I am planning to write CAT in Nov 2020. Is it possible to get into top MBA colleges with above credentials.
Yes you are eligible for pursuing MBA. The eligibility criteria for MBA is to have graduation degree with minimum 50% score.
Admission to MBA depends on the entrance exam score. Graduation percentage is considered to fulfill eligibility criteria.